Grip for cars for cable railways



(No Model.) 4 sheets-sheet `1. g

T. WRIGHT.

GRIP FOR GARS FOR CABLE RAILWAYS.

No. 342,312. Patented May 18, 1886.

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(No Model.) 4 sheets-Sheet 2.

T. WRIGHT.

. GRIP POR GARS FOR CABLE RAILWAYS. No. 342,312. Patented May 18, 1886.

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(Nov Model.) 4- Sheets-Sheet;l 3.

T. WRIGHT.

- GRIP FOR GARS PORGABLE RAILWYS. No.,342,312. Patented May 18, 1886.

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T. WRI-GET. GRIP PoR GARS imv CABLE MEW-Ms.'Y No. 342,312. l Patented May 18, 1886.

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G ATTORNEY UNITED STATES PATENT OFFICE.,

THOMAS VRIGHT, OF CAMDEN, NFV JERSEY.

GRIP FOR CARS FOR CABLE RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 342,312, dated May 18, 1886.

v Application tiled Novrmlier 25, 1884. Sirial No. 148,810. (No model.)

To all whom, it may concern.'

Be it known that I, THOMAS WRIGHT, a citizen of the United States, residing at Cainden, in thecounty of Camden and State of New Jersey, have invented certain new and useful Improvements in Grips for Gars for Gable Railways, of which kthe following is a specification, reference being had thereinto the accompanying drawings, wherein- Figure 1 is an end elevation of the grip and its operating mechanism, showing the grip in its depressed or lowered position and the gripping-jaws closed for engagement with the cable. Fig. 2 is a vertical section of same, representing the grip in its raised position and the gripping-jaws expanded or in their ungripped condition. Fig. 3. is a side elevation of the grip and operating mechanism; and Fig. 4 is a perspective of the grip, showing the jaws moved out of gripping engagement with the cable.

My invention has relation to grips and their operating mechanism for the cars of cabley railroads; and it has for its object to provide a simple, durable, and powerful grip, the jaws of which can be easily and quickly operated to effect a powerful grip upon or with thel cable, be instantly released from such engagement, and they and their supporting devices quiekl'yinserted into and withdrawn from the cable-conduit.

My invention has for its further object to prevent the cable impinging against or running in contact with the gripping-faces of the jaws when expanded or released from the cable.

My invention accordingly consists of the combination, construction, and arrangement of parts comprising a cable-motor grip and operating mechanism, as hereinafter described and claimed.

In the drawings, A represents a tubular or other suitable bracket or pedestal having a sliding stem, B, one side of which is furnished with a rack, b, in gear with a pinion, b', supported in brackets or ears reformed on the pedestal A. The shaft b2 for pinion t is provided with a power or hand wheel, b, as shown, so that a rotation of wheel b in the proper direction either raises or lowers the stem B and all parts attached thereto or supported thereby. The lower end of stem B is formed with or has attached thereto the slotplate C, which is thickened up at c to receive and upon which slides a frame, D. To the lower end of plate C is pivoted or hinged, as shown, or otherwise, as desired, a pair of jaws, E E, of any suit-able configuration and construction. ThejawsEhaveoutsidenpwardlyprojecting arms, e e, with cam ends e ein line with anti-friction rollers (Z, having bearings in sliding frame D, as shown. The arms c e of jaws E are connected to or in gear with frame D by means of toggle links or levers F, as illustrated, or which are made and arranged in any suitable or desired way, so that as frame D is either raised or lowered, as hereinafter described, the links F are drawn together or spread apart, to respectively either close or grip the jaws upon the cable or spread them apart to nngrip them therefrom. The frame D is provided or formed with upwardly-pro jecting bars d', which are in line with the slotplate C, as shown more plainly in Fig. 4, and pass through openings a in pedestal A, and also through openings in ears ai, formed on the pedestal, which therefore forms a guide for said bars el. The upper ends of the latter are connected to a traveling nut or screwplate, G, adapted to move up and down on the guides or posts h h, secured in the top of 8o stem B, and connected at their upper ends by a cross-plate, 7L', in which is swiveled a screw, H, having a power or hand wheel, It. This screw H passes through or is in gear with screw-plate G, as shown, and has a lower end bearing in the top of stem B, as more plainly shown in Fig. 2. By turning screw H the nut G is raised or lowered on its guides h, and as the nut G moves the bars d and frameD move therewith to effect a movement of the togglebars F, for either opening or closing jaws E E, as above described. i

From the foregoing it will be noted that both jaws are hinged to the slot-plate C of stem B, to effect an even gripping pressure on op- 'posite or both sides ofthe cable for maintaining its alignment; that the gripping and releasing of the jaws are accomplished by means of' a scrcwpiessure, whereby more steady and gradually-increasing or powerful pressure is obtained for gripping without requiring undue manual exertion; that the stem B has independent operating mechanism for elevating IOO and lowering it, and that the grip-operating devices, although independent of said stem 'and its'operating mechanism, are yet attached thereto and move therewith to ei'tect their in sertion into and withdrawal from the cableconduit.

At each end of both jaws E is a bracket, I, carrying a grooved antifriction roller, rIhese brackets are yielding or formed with an elastic twist or spring, t, the tendency of which is to keep the rollers i at all times normally in contact with the cable, so that when the jaws E are opened or ungripped from the cable the rollers fi, still maintainingT their contact with the cable, as indicated in Fig. 4,will keep the latter out of contact vwith or prevent it running against the gripping-surfaces of the jaws, thereby preserving the cable and jaws from undue wear when the grips of the ears are ott the cable.

Vhat I claim is-l 1. In a grip, the jaws E in gear with a sliding frame, D, having bars d, screw-nut G, guides h, and screw H, substantially as shown and described.

2. In a grip, the stem B, having plate C, mechanism for raising and lowering said stem, frame D, having rollers d, jaws E, having arms e, with cams e, adapted to rollers d, link-connections F between said arms and frame, and separate mechanism supported upon stem B for raising and lowering frame D on and independent of stem B, to close or open said jaws, as set forth.

3. In a grip, the stem B, having plate C,v

Vitnesses:

J oHN Roncnns, S. J. VAN STAvoRnN. 

